Summit Cleaning
“We walked through before and after so I could point out anything specific I wanted handled, and after so they could go through what they'd done and I could point out anything they missed (they didn't miss anything).”
Best Commercial & Office Cleaning in Westminster, CO
24 companies listed · 8 in Westminster · 3 open 24/7 · 12 open weekends · 20 rated 4.5+
Data verified October 28, 2026
Bucket & Shine
“The attention to details never go unnoticed, like the folded triangle on the toilet paper, or the tissue box made to look like a flower is blooming out of the top, and the carpet lines after a vacuum get me every time.”
KG Facility Solutions
“Was at the light rail, and there was trash on the bench, your fellow employee Antonio came over and offered to clean up the mess, wiped down the bench, and proceeded to have a nice conversation with us.”
Austin Maintenance Service LLC
“Well done with floors”
SV Clean
“We chose SV Clean over other companies because of the professional curtesy on how they understood our needs for cleaning our location to make it a safe, and a workable place during and after the pandemic.”
Handy Cleaning
“Shelley is always very nice and thoughtful when she comes to our house to tidy it up.”
Listed for businesses in and around Westminster, CO, these 24 companies hold commercial cleaning contracts. Contract cleaning is priced off a written scope and a frequency schedule, so two quotes are only comparable when both are working from the same specification.
Area overview: Westminster, CO
8 of the 24 companies we list are based in Westminster; the other 16 serve Westminster from towns including Denver (13 mi), Boulder (14 mi) and Commerce City (12 mi). 22 of the companies on this page have a rating, from 4.1 to 5.0 across 3,162 reviews; 17 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (89%) and responsiveness (73%). 3 are open around the clock; 12 are open on Saturdays and 7 on Sundays. The services the companies on this page list most often on their websites are deep cleaning (5), office cleaning (4), commercial cleaning (3), carpet cleaning (2) and janitorial cleaning (2). 3 show a license on their websites and 10 have a BBB rating of A or A+. Domain records put 15 websites of the companies on this page at ten or more years old; the oldest dates from 2001. 4 offer emergency call-outs; 10 give free estimates; 5 are family- or locally-owned and 5 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Will a company survey the building before quoting?
A free quote is offered by 10 of the 24 commercial cleaning companies listed. Insist the survey happens on site and at the hour the work would run, because an empty office at noon tells nobody what the restrooms look like at six in the evening.
RR Consulting Services
The Cleaning Pro's
Denver Cleaning Service Company
“I'm really glad I decided to hire them to help me out and I recommend Denver Cleaning Service Company to anyone who needs someone else to come in and clean so that you don't have to.”
Elite Hood Cleaning & Fire Protection Co
“Elite always goes above and beyond to meet customer expectations, Nick always makes sure his customers are satisfied and aware of any hazards they may face coming up and is willing to help them out and work with them to keep them going and keeps his ...”
Mak-Cleaning LLC
“Mak-Cleaning ,is the best Cleaning company in Colorado, I've used this company multiple times ,they are always perfect of what they're doing,always kind people and the most important thing they're Professional, highly highly Recommend this company f...”
The Cleaning Fairies
“I've contracted the Cleaning Fairies for several years (for Airbnb turnovers and general housekeeping) and the team has always been professional and reliable, both on the administrative side as well as the actual team of cleaners as well.”
Clean Conscience
“They are all very friendly and accessible so when you need them, I do not hesitate to always recommend and say that it is the best job I have ever had.”
Spotless Cleaning Services LLC
“Spotless Cleaning has been great to work with on all our Rental Property cleaning needs including Vacant property cleaning and even cleanings needed with Tenants occupying the unit, The Tenants always provide positive feedback about the Spotless Clea...”
Denver Mop Stars Cleaning Service
“They have alerted us when they expect to arrive, adjusted their services to fit our needs and yesterday, when we had an unexpected and imminent refrigerator delivery, they even offered to come back another day.”
Ameraclean
“He was clear with us that the treatment he was using had significant risks (maybe a little overly clear at times, but I will take working with an honest and transparent craftsman any day :-)).”
Organic Maids
“Not only did they do a phenomenal job, they walked me through everything that they thought they couldn't do a perfect job on (and I mean I stained my bathtub years ago with a Lush bath bomb, I was not expecting them to get that stain up- but they act...”
Chloe's Cleaning Company
“I wish the company had sent them some extra hands from the start, just because there were a couple things I noticed, like the baseboards and the tops of shelving, that while I did technically pay for with the hefty price they quoted, I felt bad for s...”
Rocky Mountain Cleaning
“It's rare to find such good customer service- emails returned in a timely manner, price is up front without hidden fees and the cleaning job was incredible.”
Sunset Hill Window Cleaning
“Not only did they tackle the task with efficiency and professionalism, but they also went above and beyond to ensure everything was spotless before the storms roll in this weekend.”
2 Buckets Cleaning
“Their customer service was also very responsive and accommodating with appointment changes and they were very quick to reschedule the few times that their cleaners were unavailable at the usual time.”
Tidytask
“This is the SECOND time I've used Tidytask for laundry (pick-up, clean, fold & deliver) Pam is an outstanding worker who is always prompt, thorough, meticulous with my clothes and carries delivery into my house.”
Dashing Maids
“They're always on time, they always clean very thoroughly, they communicate well, and 9 times out of 10 I have the same awesome cleaning tech in my home each week.”
Joyful Soul Cleaning
“Joyful is dedicated to making a great cleaning experience each time they are in your home whether it's Airbnb service, residential, deep cleans etc they go above and beyond to satisfy their customer needs this is a well established company that keeps...”
Why these companies made our list
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